Documents and Documentation (beta 1) (#23)

- Change to SQLite document store
- Complete documentation on usage of Feed Reader Central
- Update INSTALLING.md for new installation procedures

Reviewed-on: #23

src/public/docs/feeds.php

@@ -1,8 +1,8 @@
-<?php
+<?php declare(strict_types=1);
+
 include '../../start.php';
 
-$db = Data::getConnection();
-Security::verifyUser($db, redirectIfAnonymous: false);
+FeedReaderCentral\Security::verifyUser(redirectIfAnonymous: false);
 
 page_head('Feeds | Documentation'); ?>
 <h1>Feeds</h1>
@@ -71,4 +71,3 @@ php-cli util/refresh.php all</pre>
         add <code>nice -n 1</code> (with a trailing space) before the path to the script.
 </article><?php
 page_foot();
-$db->close();